Quadrisylable or Quadrisyllable: How To spell?
The word Quadrisylable is misspelled against Quadrisyllable, a noun meaning "A word consisting of four syllables."
Quadrisyllable has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings quadrisy & able which should not be misspelled with single 'L'
Wrong Spelling:  quadrisy-l-able  Correct Spelling:  quadrisy-ll-able 
Check more misspelled words of Quadrisyllable to spell it correct.